各种渠道过流计算表格

1.梯形（矩形）渠道计算,,,,,,,,,,,

,渠道底宽b（m）,边坡系数m1,边坡系数m2,水深h（m）,综合糙率n,渠道纵坡（i）,断面积A,湿周,水力半径,流量（m³/s）,流速（m/s）

例子,4,1.75,1.75,1.5,0.017,0.000625,9.938,10.047,0.989,14.508,1.46

计算1,,,,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算2,,,,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算3,,,,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算4,,,,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算5,,,,,,,0.000,0.000,#DIV/0!,#DIV/0!,

,,在绿色框里填写数据,,,,,,黄色框不需要填写，自动计算生成,,,

注：,"综合糙率n参考值：土渠取0.025，砼护砌渠道取0.015,浆砌块石护砌取0.017",,,,,,,,,,

,渠道纵坡i:一般取0.00033-0.0002，即1/3000--1/5000,,,,,,,,,,

,当断面为矩形时，填写m1=0，m2=0,,,,,,,,,,

,,,,,,,,,,,,

2.u型渠道计算,,,,,,,,,,,

,圆半径r（m）,边坡系数m1,边坡系数m2,水深h（m）,综合糙率n,渠道纵坡（i）,断面积A,湿周,水力半径,流量（m³/s）,

例子,0.5,——,——,0.75,0.017,0.00033,0.643,2.071,0.310,0.315,

计算1,,——,——,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算2,,——,——,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算3,,——,——,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算4,,——,——,,,,0.000,0.000,#DIV/0!,#DIV/0!,

计算5,,——,——,,,,0.000,0.000,#DIV/0!,#DIV/0!,

,,在绿色框里填写数据,,,,,,黄色框不需要填写，自动计算生成,,,

注：,"综合糙率n参考值：土渠取0.025，砼护砌渠道取0.015,浆砌块石护砌取0.017",,,,,,,,,,

,渠道纵坡i:一般取0.00033-0.0002，即1/3000--1/5000,,,,,,,,,,

,表中必须水深h>r，h<r利用圆形渠道计算,,,,,,,,,,

,,,,,,,,,,,,

3.圆型渠道计算,,,,,,,,,,,

,圆半径R（m）,圆心角(弧度),水面宽(B),水深h（m）,综合糙率n,渠道纵坡（i）,断面积A,湿周,水力半径,流量（m³/s）,

例子,0.5,4.429,0.8,0.8,0.017,0.00033,0.674,2.214,0.304,0.326,

计算1,,#DIV/0!,0,,,,#DIV/0!,#DIV/0!,#DIV/0!,#DIV/0!,

计算2,,#DIV/0!,0,,,,#DIV/0!,#DIV/0!,#DIV/0!,#DIV/0!,

计算3,,#DIV/0!,0,,,,#DIV/0!,#DIV/0!,#DIV/0!,#DIV/0!,

计算4,,#DIV/0!,0,,,,#DIV/0!,#DIV/0!,#DIV/0!,#DIV/0!,

计算5,,#DIV/0!,0,,,,#DIV/0!,#DIV/0!,#DIV/0!,#DIV/0!,

,,在绿色框里填写数据,,,,,,黄色框不需要填写，自动计算生成,,,

注：,"综合糙率n参考值：土渠取0.025，砼护砌渠道取0.015,浆砌块石护砌取0.017",,,,,,,,,,

,渠道纵坡i:一般取0.00033-0.0002，即1/3000--1/5000,